[SeaBIOS] [PATCH 04/19] smbios: Generic smbios_next() function

[Eduardo Habkost]

Extract generic code from smbios_21_next(), so it can be reused
for SMBIOS 3.0 support.

Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
---
 src/fw/biostables.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/fw/biostables.c b/src/fw/biostables.c
index 8e53ae2e..3c30331e 100644
--- a/src/fw/biostables.c
+++ b/src/fw/biostables.c
@@ -265,12 +265,11 @@ find_acpi_features(void)
 
 // Iterator for each sub-table in the smbios blob.
 void *
-smbios_21_next(struct smbios_21_entry_point *smbios, void *prev)
+smbios_next(void *start, u32 length, void *prev)
 {
-    if (!smbios)
+    if (!start)
         return NULL;
-    void *start = (void*)smbios->structure_table_address;
-    void *end = start + smbios->structure_table_length;
+    void *end = start + length;
 
     if (!prev) {
         prev = start;
@@ -288,6 +287,15 @@ smbios_21_next(struct smbios_21_entry_point *smbios, void 
*prev)
     return prev;
 }
 
+void *
+smbios_21_next(struct smbios_21_entry_point *smbios, void *prev)
+{
+    if (!smbios)
+        return NULL;
+    return smbios_next((void*)smbios->structure_table_address,
+                       smbios->structure_table_length, prev);
+}
+
 struct smbios_21_entry_point *SMBios21Addr;
 
 void
-- 
2.28.0
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